Device for setting saw-teeth



(No Model.)

A. HOLEGEK. DEVIGE FOR SETTING SAW TEETH.

No. 590,985. Patented Oct. 5,1897.

a H gwkgmmm m MW i am NiTEn STATES PATE T FFICE.

ALBERT HOLECEK, OF REEDSVILLE, \VISCONSIN.

DEVICE FOR SETTING SAW-TEETH.

SPECIFICATION forming part of Letters Patent No. 590,985, dated October5, 1897.

Application filed February 23, 1897. Serial No. 624,559. (No model.)

To Ll/ZZ whom may concern Be it knownlthat I, ALBERT IIOLECEK, ofReedsville, in the county of Manitowoc and State of Wisconsin, haveinvented a new and useful Improvement in Devices for Setting Saw-Teeth,of which the following is a description, reference being had to theaccompanying drawings, which are a part of this specification. j

My invention has relation to improvements in devices for settingsaw-teeth and for holding a saw during the operation of filing theteeth.

The objectof the device is to produce a most simple form of tool for thepurpose designed, adapted for accomplishing effective work with theleast possible labor and loss of time on the part of the operator.

With the above primary object in view the invention consists of thedevices and parts or their equivalents, as hereinafter more fully setforth.

Referring to. the drawings, Figure 1 is a side elevation of the completedevice, showing the saw-blade in dotted lines as adjusted to the toolin'position to have its teeth "properly set. Fig. 2 is a plan view. Fig.3 is a sideelevation of the forward end of the tool, showing the sideopposite to that illustrated in Fig. 1; and Fig. 4 is a cross-section onthe line a 4. of Fig. 3. r.

The two principal members of the tool consist of the upper and lowerjaws 5 and 6,'re-

spectively, each provided with the rearward-.

ly-extending portions 7 and 8, forming the operating-handles.

The lower jaw 6 is provided with a rigid upwardly-extending side piece9, which is formed with a forwardly-extending portion 10 of less widththan the main part of the side piece. The forward extremity of the innerside of this forward extension is provided with a laterally-extendin gtrunnion 11, which passes 'througlran eye in the forward extremity ofthe upper jaw 5, said trunnion thereby forming a pivot for the upperjaw. Formed upon or secured to the upper edge of the side piece of thelower jaw are laterallyextending flanges 12 12. The inner edges of theseflanges area desired distance apart, so as to form a space therebetween.To the under sides of the flanges at their outer edges is secured alongitudinal bar 13. j

The upper surface of the forward extremity of the lower jaw 6 isbeveled, as indicated at 14, and just back of this beveled extremitysaid jaw is provided with an upwardly-extending shoulder 15. The underside of the lower jaw near its forward extremity is pro- Vided withdownwardly-extending apertured form and its two side members or armsembrace the side edges of'the lower jaw. The upper edges of these armsor members, which edges are preferably substantially flush with theupper surface of the lower jaw, are provided with upwardly-extendinglateral wings or flanges 21 21. The lower solid portion of this gagebelow the lower surface of the jaw 6 is provided with a screw-threadedaperture 22,.through which the threaded portion of the adjusting-screw17 passes.-

The two jaws are connected medially by means of a bolt 23. The upperextremity of this bolt is threaded to receive a wing-nut 24. Encirclingthe bolt betweenthe two jaws is a coiled spring 25. The upper jaw isprovided with an opening 26, which at its lower end terminates in atriangular socket or recess 27. The numeral28 indicates atooth-settingfinger, the lower portion of which beingv of triangular form, and theupper portion preferably round to fitthe circularopening 26 therefor.The extreme upper end of the finger is threaded to receive thereon a nut29, and the shoulder formed at the upper end of the triangular portionof the finger is adapted to fit into the triangular socket 27 g in orderto prevent the finger from turning when the nut 29 is tightened. Theopening 26 is so located that the dependingtriangular portion of thefinger willjust clear the beveled front face of the shoulder when saidfinger is brought downwardly in order to bend a saw-tooth. The lower endof the fingermay be advisably beveled slightly in order to better adaptit to act on the saw-teeth. Passing through a threaded opening near theforward extremity of the upper jaw 5 is a screwbolt 30.

In the operation of my invention when it is desired to set the teeth ofa crosscut-saw the adj usting-screw 17 is turned to the left. This willcause the gage 20 to move longitudinally along the screw, the movementpreferably'being caused to continue until the gage has reached the limitof its adjustment or until it contacts with the lug 16, as shown inFig. 1. The crosscut-saw (indicated by the numeral 31) is now adjustedto the position shown by dotted lines in Fig. 1, which illustrates theblade resting in an inclined position on the upper bevel 14, formed atthe extremity of the jaw 6, while the teeth 32 of the saw extend fromthe angle formed at the junction of the beveled surface 14 with theplane surface 33 of the lower jaw. When in this position, the points ofthe teeth of the saw are in contact, or nearly so, with the wings 21 ofthe gage. In order to adjust the degree of the bending or setting of theteeth, the screw-bolt 30 is turned a desired distance to limit theupward swing of the saw blade when the teeth thereof are struck by thesaw-setting finger. Of course the more the screw 30 is screweddownwardly the more will the saw-teeth be bent. After the severaladjustments referred to have bee-n made the handles of the jaws arepressed together until the setting-finger contacts with a tooth of thesaw and bends or sets the same. The sawblade is then moved along untilthe next tooth of the series is brought into alinement, when that isbent in like manner, and soon. After the handles are brought together,asd escribed, and pressure thereon (after the setting operation iscompleted) is removed the coiled spring returns the handles to theirnormal posit-ion.

In the case of handsaws the adjusting-screw 17 is turned to the right,so as to adjust the gage toward the forward end of the lower jaw as farasdeemed necessary.

Many saws are provided with very narrow blades. In order to provide forsetting the teeth of such saws, I form an extra screwthreaded opening34; in the upper jaw 5, to which the screw-bolt may be transferred forsecuring the proper inclination of the teeth of such saws with narrowblades.

The space formed between the opposite edges of the flanges 12 andbetween the bar 13 and the side piece 9 is designed to accommodate theupper toothed edge of a saw, when it is desired to file the teeth ofsaid saw. The

tile is simply reciprocated backward and for ward over this space, so asto act 011 the teeth. In order to provide for this reciprocation of thefile, it is necessary that the upper jaw be adjusted downwardly, so asto bring its top surface flush with the upper edges of the side piece 9and the longitudinal bar 13.

The end or face of the saw set or finger 28 is practically of the samesize as the teeth of large crosscut-saws, and when the teeth of such asaw are to be set the adjustable gage 21 is moved rearwardly to thelimit of its travel, substantially to the position shown in Fig. 1, ormay be removed entirely from the implement, and the shoulder 15 thenserves as a satisfactory gage for applying the implement to the teeth ofsuch saw.

Vhat I claim as my invention is- 1. In a saw-set, the combination, ofjaws formed with suitable handles, and one of said jaws having a surfaceagainst which the sawteeth are adapted to be bent, and also providedwith a side piece projecting therefrom, said side piece having aforwardly-projecting extension, and also at its top edge provided withoutwardly extending flanges having their inner edges a desired distanceapart to form a longitudinal opening into which the saw-teeth mayproject for the purpose of filing them by the action of a filereciprocated transversely over the upper portion of the device, anotherjaw provided with a projecting setting-finger, and a bolt pivotallyconnecting the forward end of this jaw with the forwardly-projectingextension of the side piece of the other jaw. 2. In a saw-set, thecombination, of jaws, formed with suitable handles, and one of said jawshaving a surface against which the sawteeth are adapted to be bent, andalso provided with a side piece projecting therefrom, said side piecehaving a forwardly-projecting extension, and also at its top edgeprovided with outwardly extending flanges having their inner edges adesired distance apart to form a longitudinal opening into which thesaw-teeth may project for the purpose of filing them. by the action of afile reciprocated transversely over the upper portion of the device,another jaw provided with a projecting setting-finger, a bolt pivotallyconnecting the forward end of this jaw with the forwardlyprojectingextension of the side piece of the other jaw, a bolt passing freelythrough the jaws near the rear ends thereof, a spring encircling thisbolt between the jaws, and a screw-bolt engaging a threaded opening inone of the jaws, the end of said bolt adapted to act as a stop to limitthe swing of the sawblade, when the teeth of the saw are bent.

In testimony whereof I aflix my signature in presence of two witnesses.

ALBERT HOLEOEK.

Witnesses:

OHAs. ETZLER, J r., EMMA ETZLER.

